1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include "qmljspropertyreader.h"
#include "qmljsdocument.h"
#include <qmljs/parser/qmljsast_p.h>
#include <qmljs/qmljsutils.h>
#include <QLinearGradient>
namespace QmlJS {
using namespace AST;
namespace {
static inline QString deEscape(const QString &value)
{
QString result = value;
result.replace(QLatin1String("\\\\"), QLatin1String("\\"));
result.replace(QLatin1String("\\\""), QLatin1String("\""));
result.replace(QLatin1String("\\\t"), QLatin1String("\t"));
result.replace(QLatin1String("\\\r"), QLatin1String("\r"));
result.replace(QLatin1String("\\\n"), QLatin1String("\n"));
return result;
}
static inline QString stripQuotes(const QString &str)
{
if ((str.startsWith(QLatin1Char('"')) && str.endsWith(QLatin1Char('"')))
|| (str.startsWith(QLatin1Char('\'')) && str.endsWith(QLatin1Char('\''))))
return str.mid(1, str.length() - 2);
return str;
}
static bool isLiteralValue(ExpressionNode *expr)
{
if (cast<NumericLiteral*>(expr))
return true;
else if (cast<StringLiteral*>(expr))
return true;
else if (UnaryPlusExpression *plusExpr = cast<UnaryPlusExpression*>(expr))
return isLiteralValue(plusExpr->expression);
else if (UnaryMinusExpression *minusExpr = cast<UnaryMinusExpression*>(expr))
return isLiteralValue(minusExpr->expression);
else if (cast<TrueLiteral*>(expr))
return true;
else if (cast<FalseLiteral*>(expr))
return true;
else
return false;
}
static inline bool isLiteralValue(UiScriptBinding *script)
{
if (!script || !script->statement)
return false;
ExpressionStatement *exprStmt = cast<ExpressionStatement *>(script->statement);
if (exprStmt)
return isLiteralValue(exprStmt->expression);
else
return false;
}
static inline QString textAt(const Document::Ptr doc,
const SourceLocation &from,
const SourceLocation &to)
{
return doc->source().mid(from.offset, to.end() - from.begin());
}
static inline int propertyType(const QString &typeName)
{
if (typeName == QLatin1String("bool"))
return QMetaType::type("bool");
else if (typeName == QLatin1String("color"))
return QMetaType::type("QColor");
else if (typeName == QLatin1String("date"))
return QMetaType::type("QDate");
else if (typeName == QLatin1String("int"))
return QMetaType::type("int");
else if (typeName == QLatin1String("real"))
return QMetaType::type("double");
else if (typeName == QLatin1String("double"))
return QMetaType::type("double");
else if (typeName == QLatin1String("string"))
return QMetaType::type("QString");
else if (typeName == QLatin1String("url"))
return QMetaType::type("QUrl");
else if (typeName == QLatin1String("variant"))
return QMetaType::type("QVariant");
else
return -1;
}
static bool isEnum(AST::Statement *ast);
bool isEnum(AST::ExpressionNode *ast)
{
if (!ast)
return false;
if (FieldMemberExpression *memberExpr = cast<AST::FieldMemberExpression*>(ast))
return isEnum(memberExpr->base);
else if (cast<IdentifierExpression*>(ast))
return true;
else
return false;
}
static bool isEnum(AST::Statement *ast)
{
if (!ast)
return false;
if (ExpressionStatement *exprStmt = cast<ExpressionStatement*>(ast)) {
return isEnum(exprStmt->expression);
}
return false;
}
static QString cleanupSemicolon(const QString &str)
{
QString out = str;
while (out.endsWith(QLatin1Char(';')))
out.chop(1);
return out;
}
} // anonymous namespace
PropertyReader::PropertyReader(Document::Ptr doc, AST::UiObjectInitializer *ast)
{
m_ast = ast;
m_doc = doc;
if (!m_doc)
return;
for (UiObjectMemberList *members = ast->members; members; members = members->next) {
UiObjectMember *member = members->member;
if (UiScriptBinding *property = AST::cast<UiScriptBinding *>(member)) {
if (!property->qualifiedId)
continue; // better safe than sorry.
const QString propertyName = toString(property->qualifiedId);
const QString astValue = cleanupSemicolon(textAt(doc,
property->statement->firstSourceLocation(),
property->statement->lastSourceLocation()));
if (isLiteralValue(property)) {
m_properties.insert(propertyName, QVariant(deEscape(stripQuotes(astValue))));
} else if (isEnum(property->statement)) { //enum
m_properties.insert(propertyName, QVariant(astValue));
m_bindingOrEnum.append(propertyName);
}
} else if (UiObjectDefinition *objectDefinition = cast<UiObjectDefinition *>(member)) { //font { bold: true }
const QString propertyName = objectDefinition->qualifiedTypeNameId->name.toString();
if (!propertyName.isEmpty() && !propertyName.at(0).isUpper()) {
for (UiObjectMemberList *iter = objectDefinition->initializer->members; iter; iter = iter->next) {
UiObjectMember *objectMember = iter->member;
if (UiScriptBinding *property = cast<UiScriptBinding *>(objectMember)) {
const QString propertyNamePart2 = toString(property->qualifiedId);
const QString astValue = cleanupSemicolon(textAt(doc,
property->statement->firstSourceLocation(),
property->statement->lastSourceLocation()));
if (isLiteralValue(property)) {
m_properties.insert(propertyName + '.' + propertyNamePart2, QVariant(deEscape(stripQuotes(astValue))));
} else if (isEnum(property->statement)) { //enum
m_properties.insert(propertyName + '.' + propertyNamePart2, QVariant(astValue));
m_bindingOrEnum.append(propertyName + '.' + propertyNamePart2);
}
}
}
}
} else if (UiObjectBinding* objectBinding = cast<UiObjectBinding *>(member)) {
UiObjectInitializer *initializer = objectBinding->initializer;
const QString astValue = cleanupSemicolon(textAt(doc,
initializer->lbraceToken,
initializer->rbraceToken));
const QString propertyName = objectBinding->qualifiedId->name.toString();
m_properties.insert(propertyName, QVariant(astValue));
}
}
}
QLinearGradient PropertyReader::parseGradient(const QString &propertyName, bool *isBound) const
{
if (!m_doc)
return QLinearGradient();
*isBound = false;
for (UiObjectMemberList *members = m_ast->members; members; members = members->next) {
UiObjectMember *member = members->member;
if (UiObjectBinding* objectBinding = cast<UiObjectBinding *>(member)) {
UiObjectInitializer *initializer = objectBinding->initializer;
const QString astValue = cleanupSemicolon(textAt(m_doc,
initializer->lbraceToken,
initializer->rbraceToken));
const QString objectPropertyName = objectBinding->qualifiedId->name.toString();
const QString typeName = objectBinding->qualifiedTypeNameId->name.toString();
if (objectPropertyName == propertyName && typeName.contains("Gradient")) {
QLinearGradient gradient;
QVector<QGradientStop> stops;
for (UiObjectMemberList *members = initializer->members; members; members = members->next) {
UiObjectMember *member = members->member;
if (UiObjectDefinition *objectDefinition = cast<UiObjectDefinition *>(member)) {
PropertyReader localParser(m_doc, objectDefinition->initializer);
if (localParser.hasProperty("color") && localParser.hasProperty("position")) {
QColor color = QmlJS::toQColor(localParser.readProperty("color").toString());
qreal position = localParser.readProperty("position").toReal();
if (localParser.isBindingOrEnum("color") || localParser.isBindingOrEnum("position"))
*isBound = true;
stops.append( QPair<qreal, QColor>(position, color));
}
}
}
gradient.setStops(stops);
return gradient;
}
}
}
return QLinearGradient();
}
} //QmlJS
|
